Improvement in apparatus for heating liquids



@cilantizti @tutti @film DAVID H. BURRELL, OE" LITTLE FALLS, NVEVWQYORK.

, Letters Patent No. 112,12o,1atea February 28,1871.

IMPROVEMENT IN APPARATUS l'FQR HEATING LIQUIDS.

The Schedule refer-nul` to in these Letters Patent and making pari: of the same.

I, DAVID H. BURRELL, of Little Falls, in the county of Herkimer and State of New York, have in vented a new and improved Apparatus for Heating Liquids, of which the following is a speciiication.

My invention consists of a cylindrical coil of metal pipes, a little separated from each other, their plane vertical or nearly so, the entire coil laid horizontal or nearly so, for a tire-box and grate, (see drawings, figures 1 and 2, A.)

Each of these coils is connected, top and bottom, with horizontal pipes, E E', running the entire length ofthe coil or'fire-box by short pipes, F F F, or otherv means, so as -to allow water to pass from the' coils Ato the horizontal pipes.

The pipe at the'top E, with the continuation H, is

to allow the escape of air and steam Afrom t-he` top of the coils; the pipe atthe bottom E', to enable the coils to be emptied from water or sediment, and is kept closed at both ends when in use.` l

This cylindrical coil is laid horizontally in an arch oi' masonry or stone, constituting an exterior tire-box,

I), resting on and supported by benches ou each side,

about half-way from the bottom t0 the horizontal diameter of the cylindrical coil, and having` a space above that, between the walls oi' the exterior fire-box and the coils, vof an inch or more, and with an ash-pit, B, ol' several inches in depth, below the bottoni of the Icoils and extending the full height of the'cylinder.

The front of the exterior fire-box is closed with a door and valve, to regulate the draught, and the smokeflue proceeds from the opposite end.

The front end of the coil connects with the watersupply pipe G, which has a stop-cock, to regulate the flow of water, and also hy a branch-pipe, J, with a stop-cock with the bottom ci' the hot-water tank or vessel, to contain hot water.

front, so as to keep the water in the vessel at the rel quired temperature.

The lire is built within the cylindrical coil, the bottom acting as agrate, thus utilizing the heat at the bottom as well as around the whole surface.

The hot-water vessel 'is connected with the cheesevats by pipes with stop-cocks at top and bottom, so as to scure a circulation of hot walter as may be desire What I claim as my invention, and desire to' se eure by Letters Patent, is-

1. The cylindrical coil of pipe filled with water, laid horizontally, or nearly so, as a tire-box, the lower part of the coils constituting the grate over the ash-pit.

2. The combination ofthe several coils with a. horizontal pipe running the entire height, for the escape of air and ste'am from the top of each coil.

3. The combination of the several coils by a pipe at the bottom, to let out the water and sediment.

DAVID H. BURRELL.

Vitnesses:

JOHN O. CUNNINGHAM, WATTS T. LooMIs. 

